Computing Guix derivation for 'x86_64-linux'...  
substitute: 
substitute: updating substitutes from 'https://ci.guix.gnu.org'...   0.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
substitute: 
substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'...   0.0%
substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0%
The following derivations will be built:
   /gnu/store/0pa15q9y2lhk8il7zjp00yjz7lgl3279-profile.drv
   /gnu/store/ak6xc24lqigsxgbm0p18j2xsw0pshfxp-inferior-script.scm.drv
   /gnu/store/s8fgp1i3cys2zda0rh9n6m21w8r6rc2q-profile.drv
The following profile hooks will be built:
   /gnu/store/2fs1yd1zhgi0c5dlcsx309nc01ss302s-info-dir.drv
   /gnu/store/5rzb36h9076mh8b1pk0pz5zqkhz71s52-fonts-dir.drv
   /gnu/store/czyz0b3dkqsda7icz5k1i1kyaq6zhl1b-emacs-subdirs.drv
   /gnu/store/vrxi6kwy2ianbas6hxnm5wz4v10xg8a0-guix-package-cache.drv
   /gnu/store/xdrhigbz38achbpmp7cfhn9rmqp5xygp-ca-certificate-bundle.drv
building path(s) `/gnu/store/sjx650wb3krrzy6syxqwlbanavmjl0f5-ca-certificate-bundle'
building path(s) `/gnu/store/0ak8f0z8m84h4gn9ssp46b2641r98838-emacs-subdirs'
building path(s) `/gnu/store/dyxj9rxg525rp6kc3dnsixd5drcclbks-fonts-dir'
building path(s) `/gnu/store/m3as2qzgs94jz9bqjrmij6bm8il6f57l-info-dir'
building path(s) `/gnu/store/bfz6h6aaqk3qjrx88b2bflz4gsrp2kpa-profile'
building path(s) `/gnu/store/abf7jn092pkgllnldzqzsmaawp0pnaav-inferior-script.scm'
building path(s) `/gnu/store/13zchjg7fbyik8snj912g8pxf6bfwd8y-guix-package-cache'
(repl-version 0 1 1)
Generating package cache for '/gnu/store/bfz6h6aaqk3qjrx88b2bflz4gsrp2kpa-profile'...
(exception unbound-variable (value #f) (value "Unbound variable: ~S") (value (python-pytorch)) (value #f))
builder for `/gnu/store/vrxi6kwy2ianbas6hxnm5wz4v10xg8a0-guix-package-cache.drv' failed to produce output path `/gnu/store/13zchjg7fbyik8snj912g8pxf6bfwd8y-guix-package-cache'
cannot build derivation `/gnu/store/0pa15q9y2lhk8il7zjp00yjz7lgl3279-profile.drv': 1 dependencies couldn't be built
Backtrace:
In ice-9/boot-9.scm:
  1752:10 12 (with-exception-handler _ _ #:unwind? _ # _)
In unknown file:
          11 (apply-smob/0 #<thunk 7f29bb4f3340>)
In ice-9/boot-9.scm:
    724:2 10 (call-with-prompt _ _ #<procedure default-prompt-handle?>)
In ice-9/eval.scm:
    619:8  9 (_ #(#(#<directory (guile-user) 7f29bb4f6c80>)))
In cuirass/ui.scm:
   104:10  8 (run-cuirass-command _ . _)
In cuirass/scripts/evaluate.scm:
   107:27  7 (cuirass-evaluate _)
In ice-9/boot-9.scm:
  1752:10  6 (with-exception-handler _ _ #:unwind? _ # _)
In guix/store.scm:
   658:37  5 (thunk)
  2123:25  4 (run-with-store #<store-connection 256.99 7f29ba0c1dc0> ?)
In cuirass/scripts/evaluate.scm:
     89:8  3 (_ _)
In guix/store.scm:
  1995:38  2 (_ #<store-connection 256.99 7f29919312d0>)
  1421:15  1 (_ #<store-connection 256.99 7f29919312d0> _ _)
In ice-9/boot-9.scm:
  1685:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
ERROR:
  1. &store-protocol-error:
      message: "build of `/gnu/store/0pa15q9y2lhk8il7zjp00yjz7lgl3279-profile.drv' failed"
      status: 1